{
  "api_version": "1",
  "request": {
    "url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Low-Dose+Naltrexone%2C+4.5mg",
    "query": {
      "intervention": "Low-Dose Naltrexone, 4.5mg"
    },
    "page_size": 10
  },
  "pagination": {
    "page": 1,
    "page_size": 10,
    "total_count": 14,
    "total_pages": 2,
    "next_page_url": "https://clinicaltrialsfind.com/api/v1/search.json?intervention=Low-Dose+Naltrexone%2C+4.5mg&page=2&page_size=10",
    "previous_page_url": null
  },
  "source": "remote",
  "last_synced_at": "2026-09-27T03:22:56.842Z",
  "attribution": "Data derived from public ClinicalTrials.gov records. The official record at https://clinicaltrials.gov/ remains the source of truth for current availability, contacts, and full study details.",
  "notes": [
    "This endpoint exposes only public summary fields — no participant contact emails, phone numbers, or scraped investigator contact details.",
    "For contact information and full protocol detail, follow each trial's `official_url` to the ClinicalTrials.gov record.",
    "This API is a navigational aid. It does not provide medical advice, eligibility determinations, or compensation guarantees."
  ],
  "trials": [
    {
      "nct_id": "NCT00568555",
      "title": "Effects of Low Dose Naltrexone in Fibromyalgia",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "NA"
      ],
      "conditions": [
        "Fibromyalgia",
        "Persian Gulf Syndrome"
      ],
      "interventions": [
        {
          "name": "Low Dose Naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Placebo - sugar pill",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Stanford University",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 53,
      "start_date": "2007-06",
      "completion_date": "2010-01",
      "has_results": true,
      "last_update_posted_date": "2015-10-21",
      "last_synced_at": "2026-09-27T03:22:56.842Z",
      "location_count": 1,
      "location_summary": "Stanford, California",
      "locations": [
        {
          "city": "Stanford",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00568555"
    },
    {
      "nct_id": "NCT06306157",
      "title": "Low Dose Naltrexone Therapy for Complex Regional Pain Syndrome",
      "overall_status": "ENROLLING_BY_INVITATION",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE4"
      ],
      "conditions": [
        "Complex Regional Pain Syndrome",
        "Chronic Pain",
        "Causalgia",
        "Complex Regional Pain Syndrome Type I",
        "Complex Regional Pain Syndrome Type II"
      ],
      "interventions": [
        {
          "name": "Low dose naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Placebo sugar capsules",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Hospital for Special Surgery, New York",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "18 Years to 85 Years"
      },
      "enrollment_count": 40,
      "start_date": "2024-01-02",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2026-06-18",
      "last_synced_at": "2026-09-27T03:22:56.842Z",
      "location_count": 1,
      "location_summary": "New York, New York",
      "locations": [
        {
          "city": "New York",
          "state": "New York"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06306157"
    },
    {
      "nct_id": "NCT07285473",
      "title": "Low-Dose Naltrexone For ME/CFS: Dose-Finding",
      "overall_status": "NOT_YET_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Myalgic Encephalomyelitis/Chronic Fatigue Syndrome"
      ],
      "interventions": [
        {
          "name": "Low-Dose Naltrexone, 1.5mg",
          "type": "DRUG"
        },
        {
          "name": "Low-Dose Naltrexone, 3.0mg",
          "type": "DRUG"
        },
        {
          "name": "Low-Dose Naltrexone, 4.5mg",
          "type": "DRUG"
        },
        {
          "name": "Low-Dose Naltrexone, 6.0mg",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of Alabama at Birmingham",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "65 Years",
        "sex": "ALL",
        "summary": "18 Years to 65 Years"
      },
      "enrollment_count": 75,
      "start_date": "2026-10-01",
      "completion_date": "2028-04-01",
      "has_results": false,
      "last_update_posted_date": "2026-08-21",
      "last_synced_at": "2026-09-27T03:22:56.842Z",
      "location_count": 1,
      "location_summary": "Birmingham, Alabama",
      "locations": [
        {
          "city": "Birmingham",
          "state": "Alabama"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07285473"
    },
    {
      "nct_id": "NCT00501696",
      "title": "A Randomized Placebo-Controlled, Crossover-Design Study of the Effects of Low Dose Naltrexone",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Multiple Sclerosis"
      ],
      "interventions": [
        {
          "name": "4.5 mg Naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "University of California, San Francisco",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "86 Years",
        "sex": "ALL",
        "summary": "18 Years to 86 Years"
      },
      "enrollment_count": 80,
      "start_date": "2007-02",
      "completion_date": "2007-11",
      "has_results": false,
      "last_update_posted_date": "2008-05-19",
      "last_synced_at": "2026-09-27T03:22:56.842Z",
      "location_count": 1,
      "location_summary": "San Francisco, California",
      "locations": [
        {
          "city": "San Francisco",
          "state": "California"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00501696"
    },
    {
      "nct_id": "NCT07475546",
      "title": "Combination Gerotherapeutic Interventions for Healthspan Improvement",
      "overall_status": "ACTIVE_NOT_RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE3"
      ],
      "conditions": [
        "Healthspan Improvement",
        "Aging",
        "Longevity"
      ],
      "interventions": [
        {
          "name": "Rapamycin",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Metformin",
          "type": "DRUG"
        },
        {
          "name": "NAD+",
          "type": "DRUG"
        },
        {
          "name": "GSH",
          "type": "DRUG"
        },
        {
          "name": "Infinite Supplement",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Placebo/control",
          "type": "DRUG"
        },
        {
          "name": "B12",
          "type": "DIETARY_SUPPLEMENT"
        },
        {
          "name": "Intervention: Guided Meditation Program",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control: Podcast Listening Activity",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Control: Standard Exercise Regimen",
          "type": "BEHAVIORAL"
        },
        {
          "name": "Intervention: Structured Exercise Program",
          "type": "BEHAVIORAL"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT",
        "BEHAVIORAL"
      ],
      "sponsor": "AgelessRx",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "60 Years",
        "maximum_age": "80 Years",
        "sex": "ALL",
        "summary": "60 Years to 80 Years"
      },
      "enrollment_count": 30,
      "start_date": "2025-07-23",
      "completion_date": "2026-04",
      "has_results": false,
      "last_update_posted_date": "2026-03-16",
      "last_synced_at": "2026-09-27T03:22:56.842Z",
      "location_count": 1,
      "location_summary": "Ann Arbor, Michigan",
      "locations": [
        {
          "city": "Ann Arbor",
          "state": "Michigan"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07475546"
    },
    {
      "nct_id": "NCT06366724",
      "title": "LIFT: Life Improvement Trial",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "ME/CFS",
        "Long COVID",
        "PASC"
      ],
      "interventions": [
        {
          "name": "Pyridostigmine",
          "type": "DRUG"
        },
        {
          "name": "Low-Dose Naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Placebo",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Brigham and Women's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": "70 Years",
        "sex": "ALL",
        "summary": "18 Years to 70 Years"
      },
      "enrollment_count": 160,
      "start_date": "2024-09-10",
      "completion_date": "2026-11",
      "has_results": false,
      "last_update_posted_date": "2025-10-22",
      "last_synced_at": "2026-09-27T03:22:56.842Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT06366724"
    },
    {
      "nct_id": "NCT00715117",
      "title": "The Efficacy of Low Dose Naltrexone Therapy in Children With Crohn's Disease",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Crohn's Disease"
      ],
      "interventions": [
        {
          "name": "Naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Placebo, sugar pill",
          "type": "OTHER"
        }
      ],
      "intervention_types": [
        "DRUG",
        "OTHER"
      ],
      "sponsor": "Milton S. Hershey Medical Center",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "6 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "6 Years to 17 Years"
      },
      "enrollment_count": 14,
      "start_date": "2008-07",
      "completion_date": "2010-08",
      "has_results": true,
      "last_update_posted_date": "2018-09-06",
      "last_synced_at": "2026-09-27T03:22:56.842Z",
      "location_count": 1,
      "location_summary": "Hershey, Pennsylvania",
      "locations": [
        {
          "city": "Hershey",
          "state": "Pennsylvania"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT00715117"
    },
    {
      "nct_id": "NCT07092618",
      "title": "Effectiveness of Alternative Therapies in Maintaining Weight Loss Achieved by GLP-1 Medications Post-Cessation",
      "overall_status": "RECRUITING",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2",
        "PHASE3"
      ],
      "conditions": [
        "Longevity",
        "GLP-1",
        "Geroscience",
        "Aging"
      ],
      "interventions": [
        {
          "name": "Metformin",
          "type": "DRUG"
        },
        {
          "name": "Rapamycin",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone",
          "type": "DRUG"
        },
        {
          "name": "Vitamin C",
          "type": "DIETARY_SUPPLEMENT"
        }
      ],
      "intervention_types": [
        "DRUG",
        "DIETARY_SUPPLEMENT"
      ],
      "sponsor": "AgelessRx",
      "sponsor_class": "INDUSTRY",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "40 Years",
        "maximum_age": "85 Years",
        "sex": "ALL",
        "summary": "40 Years to 85 Years"
      },
      "enrollment_count": 150,
      "start_date": "2024-12-17",
      "completion_date": "2025-08",
      "has_results": false,
      "last_update_posted_date": "2025-07-30",
      "last_synced_at": "2026-09-27T03:22:56.842Z",
      "location_count": 1,
      "location_summary": "Chicago, Illinois",
      "locations": [
        {
          "city": "Chicago",
          "state": "Illinois"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT07092618"
    },
    {
      "nct_id": "NCT04756128",
      "title": "Impact of Colchicine and Low-dose Naltrexone on COVID-19",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE2"
      ],
      "conditions": [
        "Covid19"
      ],
      "interventions": [
        {
          "name": "Colchicine 0.6 mg",
          "type": "DRUG"
        },
        {
          "name": "Naltrexone",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "HealthPartners Institute",
      "sponsor_class": "OTHER",
      "healthy_volunteers": false,
      "eligibility": {
        "minimum_age": "18 Years",
        "maximum_age": null,
        "sex": "ALL",
        "summary": "18 Years and older"
      },
      "enrollment_count": 142,
      "start_date": "2021-01-25",
      "completion_date": "2021-12-12",
      "has_results": true,
      "last_update_posted_date": "2023-07-25",
      "last_synced_at": "2026-09-27T03:22:56.842Z",
      "location_count": 2,
      "location_summary": "Saint Louis Park, Minnesota • Saint Paul, Minnesota",
      "locations": [
        {
          "city": "Saint Louis Park",
          "state": "Minnesota"
        },
        {
          "city": "Saint Paul",
          "state": "Minnesota"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT04756128"
    },
    {
      "nct_id": "NCT03447782",
      "title": "Endogenous Modulation and Central Sensitization in New Daily Persistent Headache ( NDPH ) in Children",
      "overall_status": "COMPLETED",
      "study_type": "INTERVENTIONAL",
      "phases": [
        "PHASE1",
        "PHASE2"
      ],
      "conditions": [
        "New Daily Persistent Headache (NDPH)"
      ],
      "interventions": [
        {
          "name": "Naltrexone HCl (Bulk) Powder",
          "type": "DRUG"
        }
      ],
      "intervention_types": [
        "DRUG"
      ],
      "sponsor": "Boston Children's Hospital",
      "sponsor_class": "OTHER",
      "healthy_volunteers": true,
      "eligibility": {
        "minimum_age": "10 Years",
        "maximum_age": "17 Years",
        "sex": "ALL",
        "summary": "10 Years to 17 Years"
      },
      "enrollment_count": 45,
      "start_date": "2018-07-23",
      "completion_date": "2020-11-20",
      "has_results": true,
      "last_update_posted_date": "2022-05-06",
      "last_synced_at": "2026-09-27T03:22:56.842Z",
      "location_count": 1,
      "location_summary": "Boston, Massachusetts",
      "locations": [
        {
          "city": "Boston",
          "state": "Massachusetts"
        }
      ],
      "official_url": "https://clinicaltrials.gov/study/NCT03447782"
    }
  ]
}